Application of an Ultrasound-assisted Polymer Surfactant-enhanced Emulsification Microextraction for Determination of Aromatic Amines in Water Sample
10.11895/j.issn.0253-3820.150048
- VernacularTitle:超声辅助-高分子表面活性剂增强乳化微萃取测定水中多种痕量芳香胺
- Author:
Wen FENG
;
Ying ZHU
;
Gangfeng OUYANG
- Publication Type:Journal Article
- Keywords:
Polymer surfactant;
Ultrasound-assisted emulsification microextraction;
Aromatic amines;
Gas chromatography-mass spectrometry
- From:
Chinese Journal of Analytical Chemistry
2015;(7):957-963
- CountryChina
- Language:Chinese
-
Abstract:
A simple and efficient method, based on ultrasound-assisted polymer surfactant-enhanced emulsification microextraction followed by gas chromatography-mass spectrometry( GC-MS) , was developed for the determination of eight aromatic amines ( AAs ) in aqueous sample. The main parameters affecting the performance of the purposed method were optimized, and the optimized conditions were obtained as follows:150 μL of extractive solvent ( dichloroethane ) , polymer surfactant ( sodium alginate ) concentraction of 0. 20 g/L, pH 7. 0, salt addition of 3%, and ultrasound time of 1 min. Under the optimal conditions, the linear ranges of the method were 0. 1-200 μg/L for 3,3’-dichlorobenzidine, 0. 3-200 μg/L for 2,4,5-trimethylaniline, 4-chloro-o-toluidine, 3,3’-dimethyl-4,4’-diaminodiphenylmethane, 3,3’-dimethylbenzidine and 4 , 4’-methylene-bis-( 2-chloroaniline ) , 0 . 5-200 μg/L for 4-aminoazobenzene and 3 , 3’-dimethoxy-benzidine. The correlation coefficients (R2) and the detection limits were 0. 9961-0. 9997 μg/L and 0. 08-0. 3 μg/L, respectively. The intra- and inter-day RSDs were less than 10. 6% and 11. 0%. The purposed method could be applied to the analysis of AAs in water sample collected from tap water and river water. In comparison with the common SA-USAEME, conventional surfactant was replaced with water-soluble polymer surfactant to solve the problems of potential pollution, and the polymer surfactant was natural and insoluble in extractive solvent. Compared with other solid-phase extractions, the proposed method had the advantages such as simple operation and low cost.
